The corrosion cell is an electro-chemical reaction that involves the flow of electricity (the transfer of
electrons) from one metal to another metal. It occurs through a solution (a.k.a electrolyte) capable of
conducting electricity such as seawater, wet soils, or moist air. The corrosion reaction results in oxidation and
reduction, and the classic example of this cell is the automobile battery or flashlight battery shown on the next
page.